Vacuum sap-collector.



,No. 833,081. l l PATENTED 0019,71906. v. P. MovoY. vAcUUM'sAP COLLECTOR.

APPLIATION FILED JUNE 2, 1906.

a .1777.6 y wihwoaeo d ay -UNTTED sTATEs PATENT oEEroE.

' VINOEN P. MCVOY,AOF PENSAOOLA. FLORIDA, ASSIGNOR WADE, OF MOBILE, ALABAMA.

TO JAMES W.

VACUUM SAP-COLLECTOR.

i Specification of Letters Patent.

patented oct. 9, 1906.

To all whom, t may concern:

Be it known that I, VINcEN P. McVoY, a citizen ofthe United States, residing at Pensacola, in the county of Escambia and State v of Florida, have invented new and usefullmprovements in Vacuum Sap-Collectors, of which the following is a specification.

This invention relates to a sap receptacle and extractor designed for useA in the extraction of turpentine and the like from pine and other trees, the object of the invention being to provide a simple and eficient device 'of this character adapted to effect the extraction of the sap to a material extent by a vacuum action.

In the accompanying drawings, Figure 1 is a vertical longitudinal section of a sap extractor and receptacle embodying my invention. Fig. 2 is a side elevationof the same. Fig. 3 is a horizontal section of the dischargespout. Fig. 4 is a top plan view of the cup or receptacle. Fig. 5 is a side elevationof the lower end of the discharge-spout. Fig. 6 is a plan view of the coupling.

Referring to the drawings7 -1 designates a curved spout, herein shown as of elbow form and provided with a threaded upper end 2, having an abutting flange 3. The lower end of the spout terminates in a horizontal sealing-flange 4 and a depending flange 4a. The flange 4 is provided with diametrically-arranged segmental lugs or flanges 5. l The spout 1 is applied in practice to the tree from which the sap is to be extracted by threading the portion 2 thereof into a bore 6, formed in the tree, the flange 3 bearing against the surface of the tree to hold the spout securely supported in position. One or more bores 7 may also be formed in the tree at an angle to and communicating with the bore 6 to facilitate the flow of sap into the latter and to secure a more rapid extraction, such bores 7 exposing additional vertical pores of the tree.

The sap owing from the tree into the spout 1 is discharged from the latter into a cup or receptacle 8. This cup or receptacle is provided at its mouth or upper end with diametrically-disposed lugs 9, similar in form and arrangement to the lugs 5 on the spout. The lugs 9 are designed in the application of the cup to rest at right angles to the lugs 5, and a gasket or packing-ring 10 is interposed between the edge of the cup and the horizontal iiange 4 of the spout to secure a tight joint. The flange 4a of the spout extends into the mouth of the cup and its closely therein, andthe cup is secured in applied position by means of a coupling 1l. The coupling comprises a ring orannular body 12, having upper and lower sets of lugs or flanges 13 and 14, similar in the arrangement and form to the lugs 5 and 9 on cle. The coacting faces of the lugs 5 and 13 are tapered or shaped in any suitable manner, as by inclining the faces -in the manner shown, to secure a cam action, whereby when the coupling-ring is turned to locking position the lugs thereon will bind upon the lugs of the spout and cup and clamp the parts firmly and securely together. By giving a reverse quarter-revolution to the coupling the lugs thereon will move out of engagement with the lugs on the spout and receptacle and register with the spaces between the Same, thus allowing the cup to be detached for discharging the sap therefrom or for other purposes. When the cup is detached, the coupling may still be held in engagement with the spout by reason of the lugs 13 thereon resting upon the lugs 5. The ring 12 is provided with a suitable operating-handle 15.

It will be observed that the device When applied to the tree will form a gathering conductor and receptacle closed at all points except at the point of communication with the bore in the tree. Hence in the operation of the device the change in temperature from a warm day to a cool night will contract the air confined in the receptacle, thus causing a partial vacuum, whereby the extraction of sap from the tree and its passage into the collector is facilitated. lf desired, however, the spout 1 may be provided with a valve or cock 16, to which a pump may be applied for the exhaustion of air from the collector, thus forming a vacuum of high degree in the collector. Upon the closing of the valve 16 a partial vacuum will be maintained in the collector under which the sap iiowing from the tree and into the bore 6 will be drawn therein.

I claim- 1. A sap-collector designed to be hermetically attached to a tree, and having means through which air may be exhausted to form a vacuum therein.

2. A sap collector comprising a spout adapted for attachment to a tree, a receptathe spout and recepta- ICO cle at the outer end of such spout, and means through which air may be exhausted from the collector to form a vacuum therein.

3. A sap-collector comprising a receptacle closed at all points except at its point of connection with the tree, and having a valve through which air may be exhausted to Jform a vacuum therein.

4. A sap collector comprising a spout adapted for attachment to a tree, and a receptacle detachably connected with the spout, the spout being' provided with a valved outlet, whereby air may be withdrawn from the collector to form a vacuum therein to `facilitate the collection of sap.

5. A sap collector comprising a spout adapted for connection at one end with a tree, a cup, the spout and cup being provided with lugs, and a cam-coupling adapted to interlock with the lugs to hold the spout and cup assembled.

6. A sap-receptacle comprising a spout adapted for connection at one end with atree and provided at its opposite end with spaced lugs, a cup having cooperating spaced lugs, and a coupling arranged to embrace said lugs and having members to engage the same, the parts being suitably formed to secure a cam-locking action, whereby the spout and cup are held in assembled relation.

7. A sap-receptacle comprising an extracting-spout, a cup for receiving the sap therefrom, and a coupling for detachably securing the cup to the spout, said spout, cup and coupling being provided with means for coupling the parts by a cam-locking action.

8. A sap-collector comprising a spout, a

cup, means for detachably connecting the cup to the spout, thusforming ab collector closed to the exterior atmosphere and communicating solely with the bore in the tree to eHect the extraction of the sap by a vacuum action, and `means for hermetically sealing the joint between the spout and cup.

In testimony whereof I affix my signature in presence of two witnesses.

VINCEN P. MCVOY.

Witnesses:

J. J. SULLIVAN,

DrrAMUs BROWN. 

